EP 1463361 A2 20040929 - Mobile phone and method for connecting to a preferred communication system among a plurality of communication systems with different radio frequency bands
Title (en)
Mobile phone and method for connecting to a preferred communication system among a plurality of communication systems with different radio frequency bands
Title (de)
Mobiltelefon und Verfahren zur Anmeldung bei einem bevorzugten Kommunikationssystem aus einer Mehrzahl von Kommunikationssystemen mit unterschiedlichen Funkfrequenzbändern
Title (fr)
Téléphone mobile et procédé pour se connecter à un système préférentiel de communication parmi des systèmes de communication à bandes de radiofréquences différentes
Publication
Application
Priority
JP 2003081476 A 20030324
Abstract (en)
The mobile phone can connect to a preferred connected communication system A and a non-preferred communication system B. When the mobile phone connects to system A, if the detected received electric field intensity is less than a first threshold, the mobile phone connects to system B. When the mobile phone connects to system B, if the detected received electric field intensity is larger than a second threshold, the mobile phone connects to system A. The second threshold is set as larger than the first threshold, therefore, the frequency of switching between the communication systems is reduced.
IPC 1-7
IPC 8 full level
H04W 48/18 (2009.01); H04W 88/02 (2009.01)
CPC (source: EP US)
H04W 48/18 (2013.01 - EP US); H04W 88/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1463361 A2 20040929; EP 1463361 A3 20080618; CN 100369506 C 20080213; CN 101080071 A 20071128; CN 101080071 B 20110316; CN 101080100 A 20071128; CN 1533208 A 20040929; EP 2432283 A2 20120321; EP 2437553 A2 20120404; US 2004192287 A1 20040930
DOCDB simple family (application)
EP 04006208 A 20040316; CN 200410029751 A 20040324; CN 200710109443 A 20040324; CN 200710109444 A 20040324; EP 11191645 A 20040316; EP 11192702 A 20040316; US 80064204 A 20040316